F34T12/CW 34 WATTS INDUSTRIAL GRADE FLUORESENT 24,000 HOURS, COOL WHITE 4100K, REPLACES OLDER F40T12/CW BULBS WITH ENERGY SAVING 34 WATTS BULB -

Bulborama Industrial Grade energy-efficient linear fluorescent lamps are built stronger to last longer than standard grade fluorescents. Unique Krypton/Argon gas mixtures reduce energy consumption, and heavy duty triple-wound cathode guards provide burning life of up to five years and 24,000 hours. Extended life phosphors allow Industrial Grade lamps to retain consistent lumen output levels and outlast standard fluorescents up to 5 times!